Porokeratotic Eccrine Ostial and Dermal Duct Nevus (PEODDN) is a rare disorder of keratinization characterized by the presence of cornoid lamellae and association with eccrine sweat ducts. These lesions are usually benign and asymptomatic, so treatment is often for cosmetic purposes. Current therapies for PEODDN are either insufficient or impractical. We present a case of PEODDN treated with to...

The case, who discribed here is a 66-year-old man with one year history of asymptomatic, keratotic papules with a linear distribution on the skin of his right palm near the wrist. On histopathological examination cornoid lamella-like parakeratotic columns above eccrine sweat ducts were observed. The acrosyringium was also dilated. He had been followed up for predominantly sensory polyneur...

Porokeratotic Variant of Lichen Planus: Lichen planus (LP) is a well-known dermatologic disorder with various different clinical presentations. We present a case of patient who was found to have porokeratotic lichen planus, a previously unreported variant of LP.